#CalPiV2.py
from random import random
from time import perf_counter


DARTS = 1000*1000
hits = 0.0
start = perf_counter()
for i in range(DARTS):
    x, y = random(), random()
    dist = x**2 + y**2
    if dist <= 1.0:
        hits += 1
pi = 4 * (hits / DARTS)
print("圆周率值是: {}".format(pi))
print("运行时间是: {:.5f}s".format(perf_counter() - start))